I traded in my 2000 model Xterra in 2008 for a new one. The 2000 model was a bit underpowered but was fairly well satisfied with it. The 2008 what a difference in power and actually get better gas ...
I have owned the Xterra XE for 9 years now and it's a great reliable car. I bought it when I was in grad school and I now have three kids that I drive around everywhere. Very spacious and realiable.